Hearthstone's New Adventure Is One Big Party

Yesterday Blizzard revealed the newest Hearthstone adventure pack: One Night in Karazhan. It's... well... it's basically a dance party.
The premise: The wizard Medivh has invited you to a night of festivities at his magical tower, but when you arrive, you find that he's missing, and things have gotten a bit wild. To get a sense of what they're going for here, check out the cinematic trailer:

The adventure, which starts going live on August 11, has four wings and will cost $US20 ($27). (You can also buy each wing individually for 700 gold or $US7 [$9].) As with previous adventures, new wings will come out on a weekly basis. It will add 45 new cards to the game including Enchanted Raven (one mana for a 2-2 minion) and Firelands Portal (7 mana to deal 5 damage and summon a random 5-cost minion).

Safe to say this version of Karazhan will be a bit lighter than the one we saw in World of Warcraft.